Representative Chris Collins, the New York Republican indicted on insider trading charges last month, reversed course on Monday and planned to announce he would seek another term, according to two Republicans familiar with his plans.
Mr. Collins opted to stay on the ballot on the advice of lawyers who said his removal — a Byzantine procedure governed by New York’s complex election laws — would most likely face a Democratic lawsuit, and would muddle the election for his replacement, ultimately leaving the Western New York seat vulnerable to Democrats, according to one of the Republicans.